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Finding the Fourth Proportional to 436,843.45, 602,612.75 and 300,640.93

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Solution

The fourth proportional to 436,843.45, 602,612.75 and 300,640.93 is: 414,725.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,843.45 : 602,612.75 = 300,640.93 : x
  2. Step 2: Convert to fraction form
    436,843.45/602,612.75 = 300,640.93/x
  3. Step 3: Cross multiply
    436,843.45x = 602,612.75 × 300,640.93
  4. Step 4: Simplify right side
    436,843.45x = 181,170,056,086.65
  5. Step 5: Solve for x
    x = 181,170,056,086.65/436,843.45
  6. Step 6: Final answer
    x = 414,725.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.